pageShowOrHide(showCb, hideCb) {
//切换后台倒计时停止问题
var hidden, state, visibilityChange;
if (typeof document.hidden !== "undefined") {
hidden = "hidden";
visibilityChange = "visibilitychange";
state = "visibilityState";
} else if (typeof document.mozHidden !== "undefined") {
hidden = "mozHidden";
visibilityChange = "mozvisibilitychange";
state = "mozVisibilityState";
} else if (typeof document.msHidden !== "undefined") {
hidden = "msHidden";
visibilityChange = "msvisibilitychange";
state = "msVisibilityState";
} else if (typeof document.webkitHidden !== "undefined") {
hidden = "webkitHidden";
visibilityChange = "webkitvisibilitychange";
state = "webkitVisibilityState";
}
var cb = function() {
if (document[state] == hidden) {
hideCb && hideCb();
console.log('hide');
} else {
showCb && showCb();
console.log('show');
}
};
document.removeEventListener(visibilityChange, cb, false);
document.addEventListener(visibilityChange, cb, false);
}
H5移动端判断是否切出浏览器
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